In some applications the use of a single power supply may not be sufficient to provide the power required by the load. The reasons for using multiple supplies may include redundant operation to improve reliability or increased output power. When providing combined power, care must be taken to
E 1 SMALL INSTRUMENTATION POWER SUPPLIES AC - LOREME
Series and parallel operation
High current problem in series connection uA78xx - Power management forum - Power management - TI E2E support forums
Parallel and Series Connections
This PSU adapter board will allow you to link multiple ATX power supplies together to increase your total wattage output and control the on/off all at once.
Dual ATX PSU Adapter Board to Connect Multiple ATX Power Supplies Via 24 Pin ATX
Paralleling power supplies: Many viable options, but know the tradeoffs - EDN
Connecting two power supplies with same voltage rating to increase current output? - Electrical Engineering Stack Exchange
Connecting switch-mode power supplies in series to increase voltage - Electrical Engineering Stack Exchange
Combine a Function Generator with a Power Supply - EA Elektro-Automatik
Properly Configure Parallel Power Supplies
How do you connect three SITOP PSU8200 24V/40 A power supplies in series in order - ID: 109769524 - Industry Support Siemens
What is the Difference Between Series and Parallel Circuits?, Series And Parallel Circuits
Series and parallel operation
Connecting Power Supplies in Parallel or Series for Increased Output Power